rika mayuzumi, firefly (honkai: star rail), firefly (spring missive) (honkai: star rail), honkai: star rail, honkai (series), absurdres, commentary request, highres, 1girl, aqua hair, aqua nails, black hairband, blue pupils, closed mouth, cowboy shot, drawn halo, drawn wings, fingernails, gradient hair, grey hair, grey sailor collar, grey skirt, hair between eyes, hairband, halo, hands on own cheeks, hands on own face, hands up, long fingernails, long hair, long sleeves, looking at viewer, midriff peek, multicolored hair, nail polish, official alternate costume, pink background, pleated skirt, purple eyes, sailor collar, school uniform, serafuku, shirt, simple background, skirt, smile, solo, untucked shirt, white shirt